Composite part with integral electronic instrumentation circuit and its manufacturing method

A composite part, comprising:

• a rigid outer surface, to which is integrated an electronic instrumentation circuit,
• the electronic instrumentation circuit comprising:
• at least one piezoelectric transducer, connected to a first coil, and
• an electronic control circuit, connected to a second coil positioned facing the first coil,
• wherein
• the first coil is printed on at least one first electrically insulating layer printed directly on the rigid outer surface,
• the second coil is printed on at least one second electrically insulating layer covering the first coil and the piezoelectric transducer,
• the first coil and the second coil are arranged to have mutually electromagnetic coupling without coupling,
• a first electrically conducting track and a second electrically conducting track are printed on a third electrically insulating layer printed on at least one portion of the second coil to be connected to the second coil, the electronic control circuit being attached to the rigid outer surface and being connected by a first electrical connector to the first electrically conducting track and to the second electrically conducting track.